Ext4 Howto - Ext4

An EiB or Exbibyte is 260 bytes or 1,048,576 TiB. 1EiB=1024PiB 1PiB=1024TiB 1TiB=1024GiB In order to map blocks beyond 2^32 to a file, extents must be enabled since block maps only know about 32-bit block numbers. As of e2fsprogs 1.42.9, this requirement is enforced by mke2fs. Sub directory scalability Right now the maximum possible number of sub directories contained in a single directory in Ext3

[kiyotune]

ext4は16TB以上のファイルシステム作成できない（理論的には1EiB可能）。詐欺だ。